Nut foods are rich in nutrients, with high protein content, mostly between 15%-30%, close to beans and much higher than grains, which has certain nutritional value for human body. The fat content in nuts is also relatively high, most of which are above 40%, while the content in walnuts is as high as 60%. More importantly, most of the fat contained in nuts belongs to polyunsaturated fatty acids, which can reduce the levels of serum total cholesterol, low-density lipoprotein-cholesterol and triacylglycerol and improve the level of high-density lipoprotein-cholesterol, which is beneficial to the prevention and treatment of hyperlipidemia and coronary heart disease. In addition, nuts are rich in vitamin E.
Therefore, nut food is rich in nutrients and high in calories. It is a healthy food for patients with hypertension, coronary heart disease and hyperlipidemia. However, it should be noted that it should not be eaten too much. Practice has proved that when the polyunsaturated fatty acids in the diet exceed 10% of the total calories, it will have harmful effects.